Perhaps you should try some spelling variations:
"industrial government department period" » "industries government department period", "industry government department period", "industrial environment department period", "industrial government departments period", "industrial government investment period", "industrial government repayment period", "industrial government deferment period", "industrial government repayment periods"
"industrial development efforts series" » "industrial development report series", "industrial development reports series", "industrial development efforts sometimes", "industrial development exporters series"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("industrial development efforts series") or ("industrial government department period"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial development efforts series") OR ("industrial government department period")).
• Removing quotes may allow a broader search: (( industrial development efforts series ) or ( industrial government department period )).
• Adding a wildcard symbol may retrieve word variants: (("industrial development efforts series") or ("industrial government department period"))*.